Patents by Inventor Kouzaburo Matuzawa

Kouzaburo Matuzawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device for forming blisters
    Patent number: 5492465
    Abstract: A method of and a device for forming blisters in which a web material consisting a thermoplastic resin that is supplied to a rotary forming drum is heated and deformed by heat in accordance with the configuration of cavities provided on the rotary forming drum. A predetermined tension is applied forming web material while feeding it. When the rotary forming drum consists of a polygonal drum, each peripheral surface of the drum is formed as a curved surface extending along an arc whose radius is larger than that of the circumscribed circle of the polygon. This invention can be used in a packing device for foods, drugs, etc.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: February 20, 1996
    Assignees: Matsuzawa Co., Ltd., Idemitsu Petrochemical Co., Ltd.
    Inventors: Kouzaburo Matuzawa, Atsushi Fujii
  • Device for forming blisters
    Patent number: 5312239
    Abstract: A device for forming blisters in which a web material including a thermoplastic resin that is supplied to a rotary forming drum is heated and deformed by heat in accordance with the configuration of cavities provided on the rotary forming drum. A predetermined tension in the range of 5 kg/215 mm to 50 kg/215 mm is applied to the web material while feeding it. When the rotary forming drum consists of a polygonal drum, each peripheral surface of the drum is formed as a curved surface extending along an arc whose radius is larger than that of the circumscribed circle of the polygon. This invention can be used in a packing device for foods, drugs, etc.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: May 17, 1994
    Assignees: Matsuzawa Co., Ltd., Idemitsu Petrochemical Co., Ltd.
    Inventors: Kouzaburo Matuzawa, Atsushi Fujii
  • Method of forming blisters
    Patent number: 5192484
    Abstract: A method of and for forming blisters in which a web material including a thermoplastic resin that is supplied to a rotary forming drum is heated and deformed by heat in accordance with the configuration of cavities provided on the rotary forming drum. A predetermined tension is applied to the web material while feeding it. When the rotary forming drum consists of a polygonal drum, each peripheral surface of the drum is formed as a curved surface extending along an arc whose radius is larger than that of the circumscribed circle of the polygon. This invention can be used in a packing device for foods, drugs, etc.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: March 9, 1993
    Assignees: Matsuzawa Co., Ltd., Idemitsu Petrochemical Co., Ltd.
    Inventors: Kouzaburo Matuzawa, Atsushi Fujii